public Cpu(CpuMap map)
{
m_map = map;
// read pc from fffc lo and fffd hi
m_pc = m_map.Read(0xFFFC);
m_pc |= (uint)(m_map.Read(0xFFFD)<<8);
m_opcode_methods = new Dictionary<byte, Op>
{
{ 0x08, Op_PHP },
{ 0x09, Op_ORA },
{ 0x10, Op_BPL },
{ 0x0A, Op_ASL },
{ 0x18, Op_CLC },
{ 0x20, Op_JSR },
{ 0x28, Op_PLP },
{ 0x29, Op_AND },
{ 0x38, Op_SEC },
{ 0x45, Op_EOR },
{ 0x48, Op_PHA },
{ 0x4A, Op_LSR },
{ 0x56, Op_LSR },
{ 0x60, Op_RTS },
{ 0x65, Op_ADC },
{ 0x68, Op_PLA },
{ 0x6A, Op_ROR },
{ 0x76, Op_ROR },
{ 0x78, Op_SEI },
{ 0x84, Op_STY },
{ 0x85, Op_STA },
{ 0x86, Op_STX },
{ 0x88, Op_DEY },
{ 0x8A, Op_TXA },
{ 0x8C, Op_STY },
{ 0x8D, Op_STA },
{ 0x8E, Op_STX },
{ 0x90, Op_BCC },
{ 0x91, Op_STA },
{ 0x98, Op_TYA },
{ 0x99, Op_STA },
{ 0x9A, Op_TXS },
{ 0xA0, Op_LDY },
{ 0xA2, Op_LDX },
{ 0xA4, Op_LDY },
{ 0xA5, Op_LDA },
{ 0xA6, Op_LDX },
{ 0xA9, Op_LDA },
{ 0xAA, Op_TAX },
{ 0xAD, Op_LDA },
{ 0xAE, Op_LDX },
{ 0xB0, Op_BCS },
{ 0xB1, Op_LDA },
{ 0xB5, Op_LDA },
{ 0xBD, Op_LDA },
{ 0xC6, Op_DEC },
{ 0xC8, Op_INY },
{ 0xC9, Op_CMP },
{ 0xCA, Op_DEX },
{ 0xD0, Op_BNE },
{ 0xD8, Op_CLD },
{ 0xE5, Op_SBC },
{ 0xE8, Op_INX },
{ 0xF0, Op_BEQ }
};
}
public Cpu(CpuMap map)
{
m_map = map;
// read pc from fffc lo and fffd hi
m_pc = m_map.Read(0xFFFC);
m_pc |= (uint)(m_map.Read(0xFFFD) << 8);
m_opcode_methods = new Dictionary <byte, Op>
{
{ 0x08, Op_PHP },
{ 0x09, Op_ORA },
{ 0x10, Op_BPL },
{ 0x0A, Op_ASL },
{ 0x18, Op_CLC },
{ 0x20, Op_JSR },
{ 0x28, Op_PLP },
{ 0x29, Op_AND },
{ 0x38, Op_SEC },
{ 0x45, Op_EOR },
{ 0x48, Op_PHA },
{ 0x4A, Op_LSR },
{ 0x56, Op_LSR },
{ 0x60, Op_RTS },
{ 0x65, Op_ADC },
{ 0x68, Op_PLA },
{ 0x6A, Op_ROR },
{ 0x76, Op_ROR },
{ 0x78, Op_SEI },
{ 0x84, Op_STY },
{ 0x85, Op_STA },
{ 0x86, Op_STX },
{ 0x88, Op_DEY },
{ 0x8A, Op_TXA },
{ 0x8C, Op_STY },
{ 0x8D, Op_STA },
{ 0x8E, Op_STX },
{ 0x90, Op_BCC },
{ 0x91, Op_STA },
{ 0x98, Op_TYA },
{ 0x99, Op_STA },
{ 0x9A, Op_TXS },
{ 0xA0, Op_LDY },
{ 0xA2, Op_LDX },
{ 0xA4, Op_LDY },
{ 0xA5, Op_LDA },
{ 0xA6, Op_LDX },
{ 0xA9, Op_LDA },
{ 0xAA, Op_TAX },
{ 0xAD, Op_LDA },
{ 0xAE, Op_LDX },
{ 0xB0, Op_BCS },
{ 0xB1, Op_LDA },
{ 0xB5, Op_LDA },
{ 0xBD, Op_LDA },
{ 0xC6, Op_DEC },
{ 0xC8, Op_INY },
{ 0xC9, Op_CMP },
{ 0xCA, Op_DEX },
{ 0xD0, Op_BNE },
{ 0xD8, Op_CLD },
{ 0xE5, Op_SBC },
{ 0xE8, Op_INX },
{ 0xF0, Op_BEQ }
};
}